Add a Repack tool to scons. This is used to compile linux resources

chrome/SConscript

 # Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 
 Import(['env'])
 
 env_res = env.Clone()
 env_test = env.Clone()
@@ skipping 43 matching lines @@
       common_res,
       debugger_res,
       net_res,
       renderer_res,
       webkit_res,
   ]
 
 ##############################################################################
 # TODO(sgk):  move to separate .scons file for generated_resources ###########
 
-# TODO(sgk): make a pseudo-Builder for these
-import sys
-sys.path.append(env.Dir('$CHROME_SRC_DIR/tools/grit').abspath)
-
 env_grd = env.Clone()
 env_grd.Tool('scons', toolpath=[env_grd.Dir('$CHROME_SRC_DIR/tools/grit/grit')])
 
 # NOTE: fake target gets replaced with real targets from reading .grd
 generated = env_grd.GRIT(
     '$TARGET_ROOT/grit_derived_sources/fake_generated_target',
     '$CHROME_SRC_DIR/chrome/app/generated_resources.grd')
 grit_files.extend(generated)
 
 # NOTE: fake target gets replaced with real targets from reading .grd
@@ skipping 698 matching lines @@
 ]
 
 # TODO(port)
 if env.Bit('windows'):
   env.Install('$DESTINATION_ROOT/plugins/gears', gears_plugins)
 
 env.Command('$DESTINATION_ROOT/resources/inspector',
             '$CHROME_SRC_DIR/third_party/WebKit/WebCore/inspector/front-end',
             Copy('$TARGET', '$SOURCE'),
             source_scanner=DirScanner)